Packages with the xxhash use flag

app-admin / rsyslog : An enhanced multi-threaded syslogd with database support and more

  • Enable xxHash support in fmhash module (requires dev-libs/xxhash)

net-misc / rsync : File transfer program to keep remote files into sync

  • Enable dev-libs/xxhash support for hashing

sys-devel / gdb : GNU debugger

  • Use dev-libs/xxhash to speed up internal hashing.